Building-block-molding machine



G. C. DEBAY.

,sunumc BLOCK MOLDING MACHINE.

APPLICATION man uEc.a. new. 7 1,362,928. Patented Dec. 21, 1920.

2 SHEETS-SHEEI I.

G. C. DEBAY.

BUILDING BLOCK Momma MACHINE.

APPUCAHUN HLED DEC. 8.1319.

Patented Dec. 21, 1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

GEORGE C. DEBAY, OF SPBINGDALE, PENNSYLVANIA.

BUILDING-BLOCK--MOLDING MACHINE.

qpplication filed December 8, 1919.

2 '0 all whom it may concern:

Be it known that I, Gnonon C. DEBAY, a citizen of the United States, and resident of Springdale, in the county of Allegheny :and State of Pennsylvanimhave invented anew and useful Improvement in Building Block-Molding Machines; and I do hereby declare the following to be a full, clear, and exact description thereofu My invention relates to a machine for forming building blocks, and more cspeeially to blocks made of a plastic mater al with air spaces or openings formed therein.

The object of my invention is to provide a machine of this character in which the blocks can be formed accurately, with great rapidity, and at greatly reduced cost.

To these ends my invention comprises the novel features hereinafter set forth and claimed. v In the accompanying drawings, Figure 1 is a longitudinal section of my improved machine; Fig. 2 is a plan view; Fig. 3 is a cross section on the line 3-3, Fig. 1; Fig. 1 is a cross section on the line 4. l, Fig. 1

. Fig. 5 is a perspective view of the travellng mold plate; and Fig. 6 shows a modified form of my invention. In the drawings, the numeral 2 is a shaft rmounted in suitable bearings 3 111 the frame "I, said shaft havin a worm-wheel 5 keyed thereto driven by t e worm 6.

i A shaft 7 is mounted in suitable hearings -8 in the frame 9, said shaft being in line 35 with the shaft 2. r I An endless conveyor or chain 10 is mounted on the sprocket wheels 11 and 12, mount- 7 ed on the shafts 2 and 7, respectively. Sewcnred to the endless chain 10 are the mold- 0-members 13 which form the bottom 14 and one of the sides 15 of the mold. The moldmembers are so mounted on the endless -chain 10 as to have the necessary flexibility in passing around the wheels 11 and 12, as .35 indicated in Fig. 1.

The side-plate 15 of the mold-melnber 13 .hnsthe upper portion made in two sections 1 '15 and 17 hinged as at 18 so as to be free t swing verti'e "1y. Grooves 19am formed -in the bottom 6 ges of the swinging sections l6 and 17, said grooves engaging the rahbet .20 formed on the upper edge of the side-- portion 15. The inner ends of thesections 16 and 17 are beveled to form a beveljoint 21.

Specification of Letters Patent.

Patented Dec. 21, 1920. Serial No. 343,182.

The side portion 15 and the swlngui tions 16 and 1.7 are cut away to form in conjunction with each other the opcnin s 22.

Lore-bars or members 23 are pivotally mounted as at 24; in the standards 25 on the g pedestals 26, the number of said core-bars corres 'ionding to the number of openings 22 in the mold-members 13, the outer ends of said core-burs being su 'iported by said menibcrs, indicated in Fig. 1. 5

I-heuins 2? are carried by the frames 4. and 9, and said Lbcunis form supports or guides for the mold-members l3 as they are brought up into position where the molding takes place. and as they pass therefrom with the molded blocks therein.

The chute 28 is provided to receive the plastic material from which the blocks are to he formed and the lower end of said chute communicates with the receptacle 29, the sidewalls 30 of which extend down to form the end-walls of the mold, the sides of which are made up of the mold-members as clearly shown in Fig. 4.

The receptacle 29 is preferably divided 30 into two compartments 31 and 32 divided by the partition 33. Located in each compartment 31 and 32 are the spiral conveyers 3 1, shafts of said conveyors being journalcd at their ends in the llflttl'lilgdfllwt'ili 35 and the 3s lon r ends journuled in the spidelrpiute. 36.

At the upper ends of the conveyor shafts are the hevel-pinions 3T engaged by the bevelpinions 38 on the horizontal shaft 39 which may be driven by any suitable power.

In this manner the plastic material contained within the receptacle 29 is conveyed down and delivered into the molds as the n1old-membcrs come around into position to form with the side-Walls 30 of the rceeptat cle 29 the molds for the blocks.

In front of the receptacle 29 is the compressor-hlock 40 which has a rcci 'irocatil'w motion imparted to it by the pitman-rot 4:1 connected up to the crank-arm 12 on the shaft 43 which may be driven by any suitable power.

The con1pressor-block 40 moves up and down in the guides formed by one of the walls or receptacles 29 and the guide-mom bar 44. In this manner pressure may be supplied by the compressor-block 40 to the block being formed where necessary. Guide-burs 45am in the path of movement of the swinging sections 16 and 17 of the mold-members and engaging the ends of said sections will move t same over to en age the core-bars as will more fully hereina er appear.

In operation the plastic material from which the blocks are to be formed is delivered from the hopper 28 into the receptacle 29, and is forced downwardly by the spiral conveyors 34 and delivered into the molds as they come around into position continuously to receive the material. The material will be forced with considerable pressure by the spiral conveyors 34 into the molds, but itit is found desirable to add additional pressure, the compressonblock 40 is so timed to operate as each mold comes into position beneath the same and in this wag the block is further compressed.

ach mold is made up of the side-plate of the receding mold-member and the bottom and side of the following mold-member, together with the sides 30 of tl e rece tacle 29. The blocks as they are forme pass along continuously and as they approach the outer end of the conveyer they are removed in any suitable manner, and the mold-mom hers continue around and when they get beyond the front wheels 11 of the conveyor on the return the swinging sections 16 and 17 will swing outwardly as indicated in Fig. l, and will remain in this position until they come into engagement with the bars 45 which engage the ends of said swinging sections and throw them up into position where they will drop down onto the plate 15 to encircle the core-bars 23, as clearly indicated in Figs. 3 and 4 of the drawings.

In this manner, I am enabled to employ stationary core-bars as the swinging sections permit the mold-members to clear the corebars, as clearly indicated in Fig. 2, and after the core-bars are passed the bars 45 throw the swinging sections over in position to inclose said core-bars in conjunction with the plates 15.

By my improved apparatus, I am enabled to form the blocks continuously, one mold being brought up into position as' another passes beyond the receptacle 29 whereby the blocks are formed in succession with great rapidity, and the old and laboriousmethod of pressing blocks one at a time in a press is done away with.

In Fig. 6 I have shown a modified form of my invention in which the wheels 3 have the llat faces 3 with intervening grooves 3 so that the bottom pieces of the mold members will engage said, faces and the hinge connections 3 will enter said grooves 3.

What I claim is:

1. In apparatus for molding blocks, the combination of an endless conveyor, moldmembers carried thereby, each member formin the bottom and one side of the mold, t e upper portion of the side of said mold-member formed of movable sections, and a stationary core-bar adapted to e an opening'formcd in said side whereby said sections may be moved into position over said core-bar to inclose same.

2. In apparatus for forming blocks, the combination of an endless 'conveyer, moldmembers carried thereby, each member 3. In apparatus for forming blocks, the

combination with an endless conveyer, moldmembers carried thereby, each member fol-min the bottom and one side of the mold, t e upper portion of the side of said mold member being formed of swin ing sections, a stationary core-bar adapte to engage an opening formed in said side, and means for swinging said sections over said core-bar to inclose same.

4. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, each member formin the bottom and one side of the mold, t e upper portion of the side of said mold-member being formed of swinging sections, a stationary core-bar engaging an opening formed in said side, and guide-bars in the path of said movable sections whereby said movable sections are moved into position over said core-bar to inclose same.

5. In apparatus for forming molding blocks, the combination of an endless conveyer, mold-members carried thereby each member forming the bottom and one side of the mold, the upper portion of the side mold-member being formed of swinging sections, said sections engaging said side with a tongue and groove joint, and a stationary core-bar adapted to en an opehing formed in said side, where y said sections may be moved in position over said core bar to inclose same. a

6. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, each member formforming the bottom and one side of the mold,

the upper portion of the side of said moldmember bemg formed of movable sections,

bar to inclose same, a receptacle for containing the material to form the blocks, and feeding mechanism in said receptacle for delivering material to the mold.

8. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said mold-memher being formed of movable sections, a stationary core-bar engaging an opening formed in said side whereby said sections may be moved into position over said core-bar to inclose same, a receptacle for containing the material to form the blocks, and a spiral conveyer in said receptacle for delivering material to the mold.

9. In apparatus for forming blocks, the combination of an endless conveyer, moldmembers carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said moldmember being formed of movable sections, a stationary core-bar engaging an opening formed in said side whereby said sections may be moved into position over said core bar to inclose same, a receptacle for the material for forming the block, the Walls of said receptacle forming with said mold-members the mold cavity. a r

10. In apparatus for forming molding blocks, the combination of an endless conveyer, mold-members carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said mold-member being formed of movable sections, a stationary core-bar adapted to engage openings formed in said side whereby said sections may be moved into position over said corebar to inclose same, means for delivering material to the molds, and a comressor for compressing material in said molds.

11. In apparatus for molding blocks, the combination of an endless conveyor, mold members carried thereby, the upper portion of the side of a mold member formed of movable sections, and a stationary core-bar adapted to engage an opening formed in said side whereby said sections may be moved into position over said core-bar to inclose same.

12. In apparatus for molding blocks, the combination of eniiess conveying mechanism, a stationary corebar, mold side members carried by said conveying mechanism composed of separable sections having coinaiding openings formed therein adapted to r'ebeive said stationary core-bar.

In testimony whereof I, the said Gnonon G. Dnnar, have hereunto set my hand.

GEORGE C. DEBAY.

Witnesses:

Rom. D. To'rrnn, JOHN F. WILL. 

